Improvement in hubs



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UNITED S'rk'rns Fureur @reiten EDMOND OTIS, OF NEW HAVEN, CONNECTICUT,ASSIGNOR OF ONE-HALF HIS RIGHT TO GEORGE I?. O'IIS AND CHARLES H. OTIS,OF SAME PLACE.

IMPROVEMENT IN HUBS.

Specification forming part of Letters Patent No. 149,675, dated April14, 1874; application tiled December 4, 1873.

To all whom t may concern:

Beit known that I, EDMOND OTIS, of the city and county of New Haven andState of Connecticut, have inventedl an Improvement in Carriage- Wheels;and I do hereby declare that the following is a full and exactdescription thereof, "reference being had to the accompanying drawingand to the letters of reference marked thereon, making a part of thisspecification.

Figure 1 is a front view of the wheel, or so much thereof as isrequisite to show the appearance of the parts embodying my inventionwhen put together and finished. Fig. 2 is a view of the wheel heldtogether by four bolts, without the box and nut on its end. Fig. 3 showsthe inner-section of the wood hub, with the sockets in which the tenonsof the spokes are held and the metal rings or anges projecting beyondthe sockets. Fig. 4. shows the outer section of the wood hub with itsmetal flange b. Fig. 5 is aview of the spokes kwith their tenons in thesockets made for their reception, forming a solid belt of wood outsideof the sockets, against which belt the metal anges are screwed. Figs. 6and 7 show the two sections of the wood hub with'soekets on each sectionof one-half the depth of the sockets, shown in Fig. 3, and the metalanges on each section. Fig. 8 is a view of the box, made with a flange,F, on its inner end, of the size of the inner end of the hub, and of anut orcap, which is of the size of the outer end of the hub. By thisconstruction of the box all the parts about the hub are firmly screwedtogether.

The ange on the inner end of the box may have a recess, f, and supplythe place of a band onthe inner end of the hub. The same is true of thenut or cap on the outer end of the box.

A carriage-wheel with wood hub and metal ianges, riveted together, andembracing a solid belt of wood, made of the spokes, possesses greatadvantages, so far as strength and durabilityT are concerned, and greatdisadvantages, so far as expense and difficulty of repairing areconcerned. The object of my invention is to secure the advantages of awheel of such construction, and remedy the disadvantages.

To this end I make the wood hub in two sections, A and B, as shown inFigs. 3 and 4, and in 6 and 7. The two ends ot' these sections, whichcome together, are turned down, so as to leave a shoulder, against whichthe metal flanges a and b come. In Fig. 3, the part of the inner sectionA thus turned smaller, in addition-to the thickness of the metal Iiange,equals in length the width of the tenons of the spokes, into which partsthe sockets for the reception of the spokes are cut, equidist-ant apart,as shown in the figure. The part of the outer section B thus turnedsmaller corresponds in size with the corresponding part in the innersection A, and in length to the thickness of the metal flange b. Theflanges a and b are circular' and ila-t, with the holes through them ofsuch size that they will go` over the sockets, and against the shouldersprepared for them.

The wood hub in two sections may be made without sockets, and the spokesmay have very short tenons inserted in metal sockets, forming a part ofthe box, so that the metal flanges only embrace the faces ofthe spokes.

It is obvious that a wheel of this construction, with the flangesscrewed against the spokes, is much more easily repaired-a new spoke putin, for example-than when the flanges are rivetedtogether by rivetspassing through the spokes. It is also obvious that, as the metalflanges are not connected together, and are only pressed upon by wood,the hub in this wheel has'the properties of a wood hub equal in diameterto the diameter of the anges; and that the rigidity of wheels with angesconnected together is overcome, while their strength remains.v

I claim as my invention l. A carriage-wheel constructed with a wood hub,in two sections, Al and B, spokes forming a continuous belt of woodimmediately above the sockets, metal flanges fitted onto the centralends of the wood sections Aand B, axle-box C, having flange F on itsinner end and nut D on its outer end7 all combined substantially as undfor the purpose shown and described.

2. The metal lian ges fitted onto the centra-l ends of the Wood sectionsA and B, the axlebox C, with flange F on its inner end and nut D on itsouter end, all combined substantially as shown and described.

3. The metal flanges, tted onto the centra-l l ends of the wood sectionsA and B and secured by four or more bolts7 all combined substantilly asand for the purpose shown and described.

EDMOND OTIS.

Witnesses:

GEORGE P. Oris, GEORGE TERRY.

